Is it possible to sort what is causing those crashes? Only taking one route let me arrive at the last boss...
No, because the SoRR team do not want to release the source code because of "SEGA",
even they own the source code. It's just that they used sega's assets to do the game...
Without the source code, nobody can't fix bugs like this unless one is crazy enough to reverse
engineer the dcb file.
Josebagar did some progress, (he did a program to extract the resources from the huge dcb file)
but that's about it.
If you badly want to see it fixed, ask the team to release the source code.
Without it, NOTHING can be done.
THE END